Veranstaltung
Quantifying memory effects in random search processes| Titel der Veranstaltung | Quantifying memory effects in random search processes |
| Reihe | MPIDS Colloquium |
| Veranstalter | Living Matter Physics |
| Referent/in | Prof. Dr. Raphaël Voituriez |
| Einrichtung Referent/in | CNRS / Sorbonne, Paris, France |
| Veranstaltungsart | Seminar |
| Kategorie | Forschung |
| Anmeldung erforderlich | Nein |
| Beschreibung | A general question that arises in random walk theory is the quantification of space exploration by a random walker. A key observable is provided by the first-passage time, which quantifies the kinetics of general target search problems, and as such has a broad range of applications from diffusion limited reactions at the molecular scale, to immune cells patrolling tissues to find antigens, or larger scale organisms looking for resources. I will present asymptotic results which enable the determination of the first-passage time statistics to a target site for a wide range of random processes, and show how these results generalize to non- Markovian processes, which are needed to model complex searchers with memory skills. I will discuss how these results can be used to assess the optimality of general random search processes. An explicit example of a cellular system where long-range memory effects emerge will be given. |
| Zeit | Beginn: 07.10.2021, 14:15 Uhr Ende: 07.10.2021 , 15:15 Uhr |
| Ort |
Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS) (Am Faßberg 17) Video conference at www.zoom.us Meeting ID: 959 2774 3389 Passcode: 651129 |
| Kontakt |
0551/5176-101 golestanian-office@ds.mpg.de |
| Dateianhang | 211007_colloquium_voituriez.pdf |